Abstract: A method of operating a heat exchanging system seasonally which is mounted in an air duct is disclosed. The system has means for support and movement between a first position where the heat exchanger is generally normal to the air flow in the duct, and a second position where the heat exchanger is generally parallel to the air flow in the duct. During periods of the year when the heat exchanger is not used, it is moved to the second position which is parallel to the flow of air. The static pressure caused by the presence of the apparatus in the duct is then substantially reduced when in this second position and results in reduced power consumption of a fan used to generate the air flow. The fan is automatically controlled by a volume controller with a probe which senses changes in static pressure and air flow rate in the duct. The volume controller adjusts the fan motor speed and inlet guide vanes to save more than 25% of the energy used to operate the fan over a whole year.

Abstract: In a water cooling arrangement for insertable component parts groups in devices of power electronics, the carrier element on which the component parts are arranged is fashioned as a component parts carrier independent of the cooling member. A water-traversed cooling member which is seated essentially apparatus-rigid can be individually brought into thermal interaction with every component parts carrier inserted into the device in the composite of an insert being brought into thermal interaction therewith by the force of resilient elements at heat transmission surfaces precisely mating to one another which are fashioned at component parts carriers and cooling members. With a mechanical device all cooling members can be distanced in common from the apertaining component parts carriers opposite the acting direction of the forces of the resilient elements. A replacement of component parts carriers is thereby enabled without performing manipulations at devices of the cooling water circulation.

Abstract: The invention relates to a liquid to solids heat exchanger and to a process for retorting carbon-containing solids (e.g. oil shale) using such heat exchanger. The heat exchanger contains a liquid pool reservoir, heat source or heat sink for heating or cooling the liquid pool, a support for the solids such that there is heat exchange between the solids and the liquid pool without direct contact of the solids and the liquid pool, and oscillators or vibrators to cause the solids to be conveyed while exchanging heat with the liquid pool.

Abstract: An expandable heat rejection system for radiating heat generated by a source of heat on a spacecraft or like vehicle is described and comprises a fluid heat exchange medium in operative heat exchange contact with the source for absorbing heat by evaporation of the liquid phase of the medium, a thin flexible wall structure having an inlet and an outlet and defining a volume expandable and collapsible between preselected limits and defining an inner condensation surface and an outer heat radiating surface, a multiplicity of capillary grooves on the condensation surface for promoting condensation of vaporous medium and for facilitating flow of condensate along the condensation surface toward the outlet, and a pump for circulating the medium through the system.

Abstract: A cooling system for relatively movable components, such as a rotor seated for rotation with respect to a stationary component, includes a sealed channel in the stationary component disposed between the stationary component and the movable component, and an evaporator disposed within the sealed channel. The channel is filled with coolant, such as alcohol or oil, which is circulated by a pump in a closed circulation path. Heat is thereby conveyed from the system components to be cooled to the evaporator, and from the evaporator to a location where the heat can be dissipated without disturbing operation of the device. The cooling system is suitable for use, for example, in a computer tomograph for cooling the radiation detector.

Abstract: An improved cooling system for a skid steer loader includes a swing-up radiator and oil cooler assembly (60) incorporating a pair of radiators (64, 88) supported for independent pivotal movement between raised and lowered positions to facilitate access to the radiators, as well as access to the engine and associated components for service, maintenance and the like. The lowermost radiator (64) serves as the hydraulic oil cooler, and is supported in a frame (62) pivotal about a generally longitudinal axis (78). The uppermost radiator (88) serves as the engine cooler and is mounted in another shelf (86) pivotal about a second longitudinal axis (104). A latch assembly (106, 108, 110, 112 and 114) is provided for releasably securing the entire radiator and oil cooler assembly (60) in a lowered position and at least the upper radiator (88) in a raised position.

Abstract: A plurality of adsorption containers are provided which are separated into heater adsorber zones and condenser evaporator zones. The zones are successfully rotated through flow segments which form a passageway for heat carrier flows. The heater adsorption zones contain an adsorption substance from which an operating substance is extracted by adsorbing heat from a heat carrier flow and is again adsorbed by emitting heat to a further heat carrier flow. The operating substance condenses and evaporates by means of a heat exchange with further heat exchangers. The adsorption devices are suitable as cooling devices and heat pumps as well as heat transformers and heat exchangers.

Abstract: A multiplicity of parallel heat transfer tubes each sealed with refrigerant are journaled for rotation at each end and in a bulkhead that separates the air flow channel in a counterflow heat exchanger into ingoing and outgoing parallel channels. Each heat transfer element has closely spaced circular fins extending radially outward from each tube, the spacing between adjacent fins being less than the fin radius. A motor and transmission cause each heat transfer element to rotate about its longitudinal axis.

Abstract: A heat exchanger (10) for indirectly heating, drying and cooling materials comprises a hollow rotor (40) having an inlet (46) of heating and cooling medium and an outlet (47) of the medium or its condensate, a casing mounted on the hollow rotor, a plurality of disc-shaped base boards (20), a plurality of annular ducts (21, 23; 22, 24) projected from both side surfaces (11, 12) of the base boards (20), the duct forming a passage communicating with the inlet (46) and the outlet (47), arranged so as to be partly superposed sequentially on both front and back surfaces (11, 12) of the base board (20) from the inner peripheral edges to the outer peripheral edges of the base boards (20) in such a manner that partition plates for shielding the ducts (21, 23; 22, 24) being provided in the superposed positions.

Abstract: A steam lance, which is useful to melt solid sulfur in the outlet underneath a sulfur tank car containing molten sulfur, comprises (in operative relationship) tip means for contacting a material to be heated (e.g., solid sulfur); conduit means for conducting heat exchanging fluid to, or to and from, said tip means; and pivot means disposed in an operative relationship therewith for pivotally supporting said conduit means to enable the application of force to said conduit means to urge said tip means against or into said material to be heated.

Abstract: A rotary, Perkins tube heat exchanger for processing hot contaminated gas flows emanating from appliances such as laundry driers, grain driers and the like. The case of the heat exchanger is located relative to the rotor so as to lie in the gas flow boundary layer established by the latter. The case is provided with a boundary layer purge port in the hot gas chamber. An airfoil extends inwardly from the case into the gas flow boundary layer. It causes increased local turbulance in the boundary layer gas. It also diverts a predetermined proportion of the boundary layer gas and its burden of contamination products out through the purge port. The boundary layer airflow cleans both the interior of the case and the rotor, even through the rotor is characterized by the presence of a multiplicity of small openings. The device thus is rendered self-cleaning and may be operated for extended periods of time without buildup of contaminants within the heat exchanger case.

Abstract: This invention provides a structure of a heat exchanger in which a hollow drum, into which a heating or heated medium can be charged, is rotatably housed in a cylindrical outer casing, a large number of hollow projections are formed on the outer peripheral surface of the hollow drum, heating medium supply and discharge passages defined by a partition are provided within the hollow drum, and these heating medium supply and discharge passages communicate with hollow portions of the projections.

Abstract: A heating and ventilating unit for motor cars of decreased structural volume and increased efficiency provides air temperature regulation by a heat exchanger which may be variably slidably moved into the fresh air stream with its surface acted upon in a defined constant position approximately at right angles to the fresh air stream from a heat-insulated space into the fresh air stream.

Abstract: A heat exchange apparatus including an external rotor. An internal stator is hermetically sealed within the rotor. An inertia device, attached to the stator, is able to resist movement of the stator so that a difference in speed between the stator and the rotor can be maintained on rotation of the rotor. A refrigerant is present. A rotary compressor for the refrigerant comprises a core attached to the stator. A wheel surrounds the stator. Vanes are mounted on the wheel and are able to move with the rotor and there is a cylinder, eccentric to the vanes and attached to the stator. Oil is able to form a liquid piston on rotation. Thus relative rotation of the vanes and the cylinder compresses refrigerant as the volume between the wheel and the liquid piston decreases. There is a condenser for the compressed refrigerant. An evaporator evaporates condensed refrigerant and evaporated refrigerant is returned to the compressor. The oil can be separated and its level required for the liquid piston can be maintained.

Abstract: A first thermally conductive plate holds an article and heats the article with heating elements in the plate. Parallel rails support the first plate above a base. Cooling passageways for coolant flow are in a second thermally conductive plate. The second plate is supported spaced from the base by a shaft in a chamber of the second plate and a spring. During the heating phase, the second plate is spaced apart from the first plate. During the cooling phase, the second plate is urged by the spring into contact with the first plate, so that the second plate acts as a heat sink for the first plate. Vacuum suction and an annular elastomer seal around the top rim of the second plate clamp the first and second plates together in thermal communication. Vacuum suction in the chamber retracts the second plate from the first plate.

Abstract: A thermal radiating system particularly suited for use in space applications is provided with a high ratio of heat transfer to weight and a thin and light weight construction. The radiator includes heat pipes that are spaced to minimize damage from micrometeorites and through which a heat transfer medium is circulated from a heat generating source. Graphite fibers are used for their small mass per unit area and are preferably of a heat treated type having a substantially improved thermal conductivity over conventional graphite fibers. The graphite fibers are associated with the heat pipes and constitute the principal radiating surface of the system. In one embodiment, the graphite fibers are disposed in substantially parallel, co-planar relationship with respect to each other and in substantially perpendicular relationship to their associated heat pipe, thus giving the radiator in the array the appearance of a comb.

Abstract: A component fixing machine for hybrid circuits including heating station (5) and a cooling station (6) which are both mounted on a common carriage (17) which is driven in translation back and forth under a fixed station (4) for holding the substrate (1) above the carriage.

Abstract: The present invention provides a method and apparatus for determining the temperature of an object as it moves through a heat treating furnace. The furnace includes a hearth adapted to move through it thusly enabling a number of objects placed on the hearth to be heat treated as they move through the furnace. To obtain the temperature of an object being heat treated as it moves through the furnace, a hole is provided in the hearth. A thermocouple wire is inserted through the hole and into the furnace. An end of the wire is connected to an object being heat treated, and the object is placed in the furnace. The other end of the wire is connected to a temperature display device outside of the furnace which moves along with the hearth and the object as they move through the furnace.

Abstract: A high current density component of a dynamoelectric machine rotor is cooled by the use of thermosyphons that carry heat from the heat generating element to a cooler part of the rotor. A homopolar generator is shown with a rotor having a core covered by a copper shell that when so cooled by thermosyphons can be operated with substantially longer pulse intervals than previously.

Abstract: A heat exchanger apparatus includes a cylindrical-shaped heat exchanger formed by alternately laminating first and second elements in the circumferential direction of the cylindrical-shaped heat exchanger. The cylindrical-shaped heat exchanger is rotated to carry out the function of the conventional regenerative rotary type total heat exchanger. In addition, the first and second elements are also allowed to effect a heat exchange or total heat exchange operation. The cylindrical-shaped heat exchanger is either hollow or solid, which provides many variations in arrangement of air ducts for primary and secondary air flows. Further, a partition interposed between the first and second elements has variation in property: permeable to water vapor; non-permeable to water vapor as well as non-hygroscopic; and so forth. The first and second elements exchange heat with each other in a total heat exchange operation mode and a sensible heat exchange operation mode.

Abstract: A chemisorption thermal system provides a cooling output by revolving an array of thermal elements through heat sink and heat source temperature zones defined within a cylindrical housing. Each thermal element is an enclosed elongated body having an absorbent material at one end and a reactant containing part at the other end. Reactant is desorbed from the absorbent material in one part of the thermal cycle, and then evaporated from the reactant containing part to provide a cooling output in another part of the cycle. It is particularly suitable as a vehicle air conditioner using the engine waste heat as a heat source and the vehicle radiator as a heat sink. The invention also makes use of dry chemical absorbent materials which have high heats of reaction allowing the system to have a high heat capacity and low volume. The thermal cycle may be reversed to provide a heating output.

Abstract: Apparatus for providing thermal transfer between a semiconductor wafer and a heat sink or source in a vacuum processing chamber includes a platen against which the wafer is sealed to define a thermal transfer region therebetween. The platen includes a passage for gas flow between the chamber and the thermal transfer region. The apparatus further includes a valve for controllably opening and closing the passage and a controller for closing the valve when the pressure in the chamber reaches a predetermined value. Gas at the predetermined pressure, typically 0.5 to 100 Torr, is trapped in the thermal transfer region and conducts thermal energy between the workpiece and the platen. In a preferred embodiment, a plurality of platens are positioned on a rotating disc in an ion implantation system and a centrifugally operated valve is utilized to close the passage.

Abstract: A fluid thermal storage and transfer unit which includes a fluid conduit which is substantially filled with a fluid which is substantially all of the same state. For example, the fluid may be all liquid. The loop of fluid conduit has first and second axial sections which are disposed at different elevations. Typically, a module incorporating the loop will have the first and second axial sections disposed on opposite sides.

Abstract: Apparatus for providing thermal transfer between a semiconductor wafer and a heat sink or source in a vacuum processing chamber includes a platen against which the wafer is sealed to define a thermal transfer region therebetween. The platen includes a passage for gas flow between the chamber and the thermal transfer region. The apparatus further includes a valve for controllably opening and closing the passage and a controller for closing the valve when the pressure in the chamber reaches a predetermined value. Gas at the predetermined pressure, typically 0.5 to 100 Torr, is trapped in the thermal transfer region and conducts thermal energy between the workpiece and the platen. In a preferred embodiment, a plurality of platens are positioned on a rotating disc in an ion implantation system and a centrifugally operated valve is utilized to close the passage.

Abstract: A vertically extending heat exchanger is provided in which an elongated dasher is rotatably mounted within an upright cylindrical chamber. The exterior surface of the dasher coacts with the interior surface of the chamber to form a product flow passage. The opposite side of the chamber interior surface is in contact with a heat exchange medium. The dasher is selectively movable longitudinally of the chamber between operative and inoperative modes. When in the operative mode, the dasher is fully assembled within the chamber and is supported at opposite ends by upper and lower endwall assemblies, the latter being mounted, respectively, on the upper and lower exterior end portions of the chamber. The dasher is movable to the inoperative mode when the lower endwall assembly is disassembled from the chamber and the dasher is lowered through the lower end portion of the chamber.

Abstract: Apparatus for providing thermal transfer between a semiconductor wafer and a heat sink or source in a vacuum processing chamber includes a platen against which the wafer is sealed to define a thermal transfer region therebetween. The platen includes a passage for gas flow between the chamber and the thermal transfer region and a conduit for circulation of a cooling fluid. The platen further includes a fluid-actuated valve responsive to the pressure of the cooling fluid for closing the passage. When the pressure in the chamber reaches a predetermined value, the cooling fluid is turned on and closes the valve. Gas at the predetermined pressure, typically in the range of 0.5 to 100 Torr, is trapped in the thermal transfer region and conducts thermal energy. In a preferred embodiment, a plurality of platens are positioned on a rotating disc in an ion implantation system.

Abstract: A rotary inertial thermodynamic absorptive system which can be used as a gas-driven heat pump, a heat-flow-driven gas pump, or, in combination, a heat splitter for moving low-grade heat energy from a lower temperature source to a higher temperature heat sink. In one embodiment, an absorptive type rotary inertial thermodynamic device employs overspill/underspill barriers in its absorption and desorption chambers to achieve counterflow heat exchange therebetween and to ensure effective control of thermodynamic impedance.

Abstract: The disclosure provides a rotating cylinder defining an elongated S-shaped fluid pressure chamber having the two ends thereof remotely located with respect to the axis of rotation. The S-shaped fluid pressure chamber accommodates a free piston which reciprocates along the length of the chamber according to fluid pressure and centrifugal forces applied thereto. Solenoid operated inlet and exhaust valves are provided at each end of the S-shaped fluid pressure chamber, and sensing devices, responsive to the passage of the free piston therethrough are disposed on opposite ends of the S-shaped fluid pressure chamber and adjacent the medial portions thereof to control the operation of the inlet and exhaust valves in accordance with the desired objective to either maximize the extraction of mechanical energy from a pressured gas or maximize the expansion of the pressured gas to derive the greatest possible cooling effect therefrom.

Abstract: A compact, self-contained cooling-heating-humidifying-filtering apparatus has an endless band of water-absorbent, air-permeable material traveling in partial immersion in water contained in a receptacle within a conditioner housing. A fan produces a continuous airstream from an air inlet to an air outlet, both defined in the housing, through the endless band. A damper is provided in order to divide the air outlet into a cool air outlet and a warm air outlet. The damper is operated by a hand lever so as to selectively communicate the cool and warm air outlets with the air inlet. An electric heater is disposed at the warm air outlet or, preferably, on one of the opposite surfaces of the damper for heating the air flowing through the warm air outlet. This location of the heater serves to assure noiseless cooling operation and to permit the heater to heat effectively, despite its limited capacity, the air flowing through the warm air outlet.

Abstract: The improved method and apparatus for operating a centrifugal piston expander of the type wherein a free piston is mounted in a rotating fluid pressure chamber having a longitudinal axis that is non-radial with respect to the axis of rotation, but extends from a position remote from the rotation axis to a position proximate to the rotation axis. To bring the free piston to a cushioned stop when it is moving radially inwardly under the influence of applied gas pressure, a normally open exhaust valve in the inner end of the fluid pressure chamber is closed to trap a column of gas in the path of the oncoming piston. After the inward motion of the piston is arrested, the valve may be opened to exhaust the trapped gas or may be maintained closed for a brief period to permit the energy stored in the trapped gas to initiate the acceleration of the piston in its return outward movement.

Abstract: The disclosure provides an oscillatable body mounting a cylinder defining an elongated fluid pressure chamber having at least one end thereof remotely located with respect to the axis of oscillation. The elongated fluid pressure chamber accommodates a free piston which reciprocates along the length of the chamber according to fluid pressure applied thereto. Solenoid operated inlet and exhaust valves are provided at each end of the elongated fluid pressure chamber, and sensing devices, responsive to the passage of the free piston therethrough are disposed on opposite ends of the elongated fluid pressure chamber and adjacent the medial portions thereof to control the operation of the inlet and exhaust valves in accordance with the desired objective to either maximize the extraction of mechanical energy from a pressured gas in the form of oscillating movements of the body, or maximize the expansion of the pressured gas to derive the greatest possible cooling effect therefrom.

Abstract: A thermal machine includes a horizontal rotatable shaft extending through a cylindrical housing which contains the at least high and low pressure stages. The shaft carries a pair of cylindrical drum heat transfer means within the housing to rotate with the shaft. All or part of both drums contain an intermediate pressure stage, with pool collection capability within the drums using annular rims to retain the absorbent solutions. The outer housing has means to permit collection of absorbent solutions in separate pools in contact with the respective outer sidewall surfaces of the drums. Such contact provides thermal coupling between stages. Additional sections of the drums may contain pools for external circulants, which drum sections also contact the pools in the outer housing. Sealing means permits rotation of the respective drum means but isolates the vapors within the drums from the pools within the outer housing and vapors from the outer housing pools from one another.

Abstract: An improved device for supporting and holding an object in place under temperature controlled conditions is described. The device comprises a shaft mounted for rotation about a rotation axis, and a top plate coupled to and rotatable with the shaft. The top plate comprises a top substantially planar surface disposed normally to said axis, a bottom surface disposed opposite the top surface, and at least one aperture disposed in the top surface for providing a negative pressure vacuum so that the object can be held in place on the top surface by the negative pressure vacuum. Electrical temperature sensing means is disposed in the top plate for providing an electrical signal as a function of the temperature of the top plate. Electrical temperature modification means is coupled to and rotatable with the shaft and disposed relative to the bottom surface of the top plate for maintaining the temperature of the top plate at a preselected temperature.

Abstract: A cementitious product is produced from a combination of two groups of materials: the first group consisting of lime of Portland cement or Linfan (which is defined as a thermally cracked shell of calcium sulfate surrounding a core of lime) or Linvein (a lime particle coated with cracked calcium carbonate); and a second material consisting of thermally cracked fly ash which is cracked by thermally quenching such finely divided particulate material from an elevated temperature at least above 300.degree. C. and preferably higher than 450.degree. C. to ambient or below ambient temperatures.The two materials are blended together. They are mixed with water, placed in a form, and then allowed to cure. Filler materials can also be used in the form of sand, gravel, and other aggregates, depending upon the strength and compositional characteristics desired in the final product.

Abstract: An eddy current coupling 11 includes an input member 19, an output member 21 rotatable relative to the input member about an axis of rotation, a pole assembly 29, an inductor drum assembly 25 and a field coil 41 for coupling the input and output members. The inductor drum assembly 25 includes a generally cylindrically drum portion 27 and a radially extending drum portion 26. A heat dissipating member 71 integrally formed from a heat conductive material such as aluminum is attached to the radially extending portion 26 of the inductor drum assembly. The heat dissipating member includes heat dissipating fins 75 on one side thereof and rivet means 77 on the opposite side thereof for connecting the integrally formed heat dissipating member 71 to the radially extending portion 26 of the inductor drum assembly. The rivet means 77 act to transfer heat from the inductor drum assembly 25 to the heat dissipating member 71.

Abstract: The disclosure provides an apparatus for extracting heat and/or mechanical energy from a pressured gas wherein the pressured gas is applied to the radially outer ends of rotating cylinder elements defining logitudinally extending fluid pressure chambers having one end thereof remote from the axis of rotation and the other end proximate to the axis of rotation. A free piston is mounted in each of the fluid pressure chambers and is reciprocable therein solely under the influence of the gas pressure and centrifugal force. Valving elements are provided at the outer end of the cylinder elements which are operable by the movement of the free piston toward such outer end to open the pressured gas inlet valve. A second valving element is provided near the inner end of each fluid pressure chamber to open ports causing the exhaust of the expanded, cooled gas from the chamber.

Abstract: A heat-actuated air conditioner/heat pump is disclosed which includes a sealed, rotatable tube. The sealed tube contains a working fluid and includes an evaporator leg and a condenser leg, the condenser leg extending a greater distance from the axis of rotation than the evaporator leg. As the tube is rotated, a vapor pressure differential is created between the evaporator and condenser legs with the higher pressure in the condenser leg. Because of this pressure differential, the working fluid will evaporate in the evaporator leg at a lower temperature than that at which it will condense in the condenser leg. The evaporator leg thus can be used for cooling a stream of house air (house air conditioning) while the condenser leg rejects heat to a stream of ambient air. When all of the working fluid has evaporated, the system may be recharged for another cooling cycle by supplying heat to the condenser leg to drive the working fluid back into the evaporator leg.

Abstract: The invention provides a method and apparatus for operating any centrifugal piston expander to convert energy derived from a heat source into mechanical energy. Pressured gas received from the heat source is circulated through the centrifugal piston expander, then to a series connected heat exchanger and compressor to recompress same and to remove sufficient heat to satisfy the entropy requirements of the closed cycle, and then is resupplied to the heat source for recirculation. Several types of centrifugal piston expanders are disclosed including one type wherein the centrifugally produced stroke of each piston is utilized to force the expanded gas into the subsequent apparatus.

Abstract: A heat-generating apparatus comprising a friction chamber immersible in a fluid reservoir. A drive shaft is supported in the friction chamber and is rotationally driven by a power assembly. Shoe members engaged with an operating plate secured to the drive shaft are urged into friction-generating engagement with the friction chamber in response to drive shaft rotation. Heat thus generated is channeled to the fluid reservoir. The power assembly may comprise a windmill assembly, responsive to wind movement, which drives a rotary shaft engaged with the drive shaft.

Abstract: An air cooling system is provided wherein a refrigerant gas, which may be air, is expanded in a plurality of piston and cylinder elements which are concurrently rotated by a power driven shaft. The reaction force of the expanding gas produces mechanical energy assisting in the rotation of the power shaft. Valving arrangements are provided for supplying pressured gas to separate sets of piston and cylinder elements in timed sequence, if desired. The expanded, cooled gas is directed through a heat exchanger mounted on the rotating power shaft and returned to a compressor, also mounted on the rotating power shaft, for recompression and resupply to the rotating piston and cylinder elements. Alternately, the cooled gas may be fed directly into the room to be cooled.

Abstract: The disclosure provides a method and apparatus for extracting heat and/or mechanical energy from a pressured gas wherein the pressured gas is applied to the radially outer ends of rotating cylinder elements defining longitudinally extending pressure chambers having one end thereof remote from the axis of rotation and the other end proximate to the axis of rotation. A free piston is mounted in each of the fluid pressure chambers and is reciprocable therein solely under the influence of the gas pressure and centrifugal force. Valving elements are provided at the outer end of the cylinder elements which are operable by sensing elements which are respectively mounted on each of the cylinders and generate signals in accordance with the position of the free piston in the respective cylinder. Electronic circuitry is provided to insure that the inlet valves of each pair of diametrically opposed cylinders are concurrently operated to an open position to assure the dynamic balance of the rotating system.

Abstract: A heat pipe heat exchanger for transferring heat from a high temperature fluid such as, for example, exhaust gas of a boiler, to a low temperature fluid comprises a first flow path (13,14,15,16,17) along which the high temperature fluid flows, a second flow path (18,19,20,21,22) along which the low temperature fluid flows, and a rotor (28) formed by a plurality of heat pipes (8) disposed across the two flow paths with such intervals that the high temperature fluid or the low temperature fluid can pass therebetween and transferring heat from the high temperature fluid to the low temperature fluid, and the rotor (28) has a separating member (9) fixed to the rotor and separating the first flow path (14,15,16) therein from the second flow path (19,20,21) and is rotatable. By this, corrosion, decreased wall thickness and clogging of the heat pipes is prevented from being localized in a particular portion thereof and the maintenance work of the heat exchanger can be facilitated.

Abstract: A device for pumping a liquid or gaseous current medium has a casing designed to guide the flow of the current medium and a rotary bearing motor driven rotor wheel designed to pump the current medium through the casing. The rotor wheel is equipped with a number of blades mounted on a shaft or other machine part whose function resembles that of a shaft, the blades being installed one behind the other in series in the direction of circulation. The blades project almost radially outwards in one embodiment and extend over the axial length of the rotor wheel in another embodiment. A partition fitted to the rotor wheel separates the volume flow of the medium pumped through the casing into an incoming pumping medium current, e.g. the inlet air or external air current, and an outgoing pumping medium current, e.g. the expelled air or outgoing air current. At least one heat pipe is fitted permanently to each blade, and rotates with its respective blade.

Abstract: A rotary heat exchanger characterized in that a spherically coiled heat transfer bypass tube is provided concentrically about a reflux type heat transfer double-tube at a part thereof, the outer tube of the double tube being rotatable, wherein a suction tube is provided around the outer tube within the spherical space defined by the bypass tube, said suction tube incasing screw vanes secured to the outer periphery of the outer tube, whereby convection is induced within the spherical space by the rotation of the outer tube. With the exchanger, good heat exchange efficiency is attainable without scaling.

Abstract: A multiple section heat pipe with swivel junctions between the sections. The individual sections are independent individual heat pipes configured to interlock with each other at rotatable joints filled with high heat conductivity liquid. The clearance between the sections is maintained small to establish capillary forces that maintain the conductive liquid in place and also to minimize the temperature differential across the rotating joint. When used in conjunction with several right angle heat pipes, the combination furnishes multiple possibilities for end to end relationship of a heat pipe system.

Abstract: A rotating fluidized bed heat exchanger particularly adaptable as a heat exchange unit in the recuperator section of conventional gas turbine engines comprising an annular fluidized bed, defined by inner and outer spaced apart coaxial cylindrical, perforated walls, which rotates about the longitudinal axis of the cylinders. The bed is comprised of pulverulent inert particulate material and includes fluid-containing heat exchange tubes passing substantially longitudinally therethrough. Hot gases, such as turbine exhaust gases, enter the bed through the outer perforated wall, heat and fluidize the bed particles, heat the fluid, usually compressed air, in the tubes, and exit the bed through the inner perforated wall. The heat exchange tubes direct the fluid flowing therein from an inlet adjacent the inner perforated wall to an outlet adjacent the outer perforated wall such that the fluid flows substantially countercurrently to the hot fluidizing gas.

Abstract: A heat transfer system for transferring heat between a heat-emitting zone or heat source and a heat-consuming zone or heat sink in accordance with a heat pipe principle in cases where a limited relative movement takes place between the heat source and the heat sink. A bundle of small tubes extending essentially in parallel to one another and movable relative to one another is arranged at least along a partial zone of a heat transfer path between the heat source and the heat sink. Each individual tube of the bundle of tubes is constructed in accordance with the heat pipe principle.

Abstract: The densified area commonly formed during the manufacture of blocks of pliable polyurethane foam on a web of continuous material in a foaming tunnel is eliminated by controlled heating of the conveyor belt in the tunnel to a range between the densification temperature and the cracking temperature of the foam during the reaction period. An improved apparatus for this purpose comprises an enclosed, insulated housing and means for heating the conveyor belt such as hot air, infrared radiation, steam coils or electrical resistors. A preferred embodiment comprises heating the bottom of the foam block after it emerges from the foaming tunnel to a temperature considerably higher than that in the foaming tunnel. This eliminates completely any need for trimming off irregularities after removal of the web of continuous material.

Abstract: A heat generating device includes a sealed metal drum with spaced peripheral fins and houses a cage-like agitator mounted on a rotatable shaft axially disposed therein and extending through one end for connection to a source of power. The agitator includes a plurality of elongated flat bar-like vanes arranged in close concentric relationship to the drum and supported by spaced apertured hubs on the shaft. The periphery of each hub has serrated type notches so that the vanes are tangential to the hubs and in off-set alignment with each other. Relative to the direction of rotation of the agitator, the leading edge of each vane is spaced inwardly from the trailing edge of the adjacent vane a predetermined distance to provide a restricted passageway.

Abstract: A heat exchanger is provided with pivotally mounted, angularly disposed, cooling modules or cores so as to increase the cooling capacity of the heat exchanger and, at the same time, to have a self-cleaning capability for the modules or cores. The angular disposition of the modules or cores results in a larger effective frontal area to the heat exchanger thereby increasing the cooling capacity of the heat exchanger. The angular orientation of adjacent modules or cores slightly compresses the oncoming air which provides an increased level of cooling for the cores. Each module or core can be pivoted about an axis a sufficient amount such that the opposite surface of each module or core is swept by the oncoming air which passes around and through the modules or cores in a direction opposite to an initial pass of said air whereby the modules or cores are cleaned by the reverse flow of air.